Question

17.

A dartboard is circular, as shown. The
dartboard has a diameter of 30
millimeters. What is the area of the
dartboard in square millimeters?

Answer 1

The area of a circle is given by the formula A = πr^2, where A is the area, r is the radius, and π is approximately equal to 3.14. Since the diameter of the dartboard is 30 millimeters, the radius is half of that, or 15 millimeters. Therefore, the area of the dartboard is A = π(15^2) = 225π square millimeters.

Explanation: